[c-nsp] tag-switching advertise-tags for?

[Jon Lewis]

On Mon, 24 Oct 2005, Robert Kiessling wrote:

> You will need separate BGP sessions for IPv4 and VPNv4 prefixes,
> with different session endpoints (usually Loopback interfaces) [1].

Why would I need separate sessions for address-families ipv4 and vpnv4? 
Putting all the router lo0 IPs into LDP would (I assume) result in traffic 
to router lo0's being tag-switched instead of routed.  That's a situation 
I have now anyway, and don't mind.  It's the odd customer here and there 
where I need to be able to policy route, but can't now, because all their 
traffic's tag-switched that I'd like to be routing instead.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                | 
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